Question 1197456
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You are given a Binomial distribution with n= 15 trials and p= 0.3 of the 
success probability for each of 15 independent trials.


To find the standard deviation of a binomial distribution 


        Compute the variance as n × p × (1-p) , where n is the number of trials 
        and p is the probability of success. 
        Take the square root of the number obtained in Step 1. 


Thus for the given problem the standard deviation is  


&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{{{sqrt(15*0.3*(1-0.3))}}} = {{{sqrt(3.15)}}} = 1.8   &nbsp;&nbsp;&nbsp;&nbsp;(rounded).   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U>
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Solved.